Resetting mechanism for weft-replenishing looms



Dec. 30, 1930. P. D. DOHERTY ,706"

nrzssmme maqumsm FOR w asnmnzsnme Looms Filed March 14, 1929 S my; 17 00mg l atented- Dec. .30, 1930 ENT ar -E PHILIP )1); DCHERTYgrOFY WORCESTER, MASSACHUSETTS, ASSIGNOR t iro GROMPTON. a

'KNOWIJES LooMvJoRKs; or MAssAoHUsETrsG 1 I ORCESTER; ;MASSAQHUSETTS, A CORPORATION OF nnsnrrmefivrnonamsm ron warrr-nnrnnmsnma Looms 'fA icatio -filament 14,1929; Serial meanest This invention relates to improvements in resetting mechanism for weft replenishing looms more particularly of the multicolor type and it is an'important object of the in ivention to provide" means for moving the shuttle feeler so that it may be relieved from objectionable contact with the lay. a

f In'the usual multicolor weft replenishing i mechanism there "are provided two separate devices which act-to resetthe magazine on the transferringybeat ofthe loom. One of these isthe'sofcalled shuttle feelerwhich is pivoted-"a hore the lay to beengaged and raised by the lay as it heats its extreme for ward movement on a transfer-ring pick of the loom; The I other device includes a cam formed on'the bottom of thetransferrer latch "cooperating withthe rodlwhichexitends up -wardly and is operatively-connectedto the which engages the hunter on the lay, the cam top rock shaftandshelf of the usual multicolor weft replenishing mechanism.

When the shuttle feeler performs no other function than to detect for the shuttle it is permissible thatsaid feeler engage the lay in 9 order to rock the top shaft, but when a thread 1 cutter is mounted on the shuttle feeler it may be desirable to keep the shuttle feeler out of contact with the lay at all times in order to prevent injuryto the cutting mechanlsm.

This result be accomplished by depending solel-yupon the cam'of-the latch toreset" the magazine, but under certain conditlons it is desirable to relieve the latch of the necessit-y for resetting the magazine due to the fact that an ad ustment of SitldlfiICll maybe rendered necessary by a changed conditlon.

in the replenishing mechanism The latch is ordinarily adjustably'mounted" on a holder pivoted to the depending legs of:

the transferrer and during transfer energy derivedfrom the hunter of the-lay s transmitted through the latchandthe-holder to the-transferrer, the latter extending backwardly toward the lay and engaging the bobbin to move it downwardly to the proper vertical position with respect to the shuttle.

wim a change in, the throw-of the crank shaft which operates the lay or with a low--: ering of the lay due to wearing of the rocker desirable to change the position of the latch w th respecttoits'holder so that when the lay is in its extreme forward position the trans'ferrer will be effective to place the in coming bobbin correctly with respect to the shuttle." "From this it will be seen that the transferrer latch is likely to be changed from time to time and for this reason it is desirable to reset the magazine through some mechanism other than the latch.

The interval during which resetting of a the magazine may take place is that lapsing between engagement. fof: the lay hunter with the latch, and arrival of the lay at its extreme forward position, In some looms this interval :coversa'bout an inch and a quarter of travel on the partof the lay, but the resetting is not accomplisheduntil the very ting at an earlier point in this interval so that the shuttle'feeler and its thread cutter may be moved'in advance of the lay to prev vent thelatter from injuring the cutter. .i- The previously mentionedlatch-lifting rod -which-is a customary part of the ordinary weft replenishing mechanism lies adjacent the tt'ransferrer arm and is operatively connected to the top rock shaft. It is a further object of my present invention to establish connections between the rtransfer rer arm and said rod so that the rockshaft may be restoredto normal position by a force derived from the transferrer arm during an early part of the previouslymentioned interval of time. If desired a yielding connection may be established between the transferrer arm and said rock shaft so" that the transferrer mechanism may continue tomove after the magazine is reset without injuring any parts of the magazine.

lVith these and other objects in view which will appear as the description proceeds, my invention resides in the combination andarrangement of parts hereinafter described and set forth in'the claims. 7' a a In the accompanying drawings, wherein I have shown a particular form of shuttle feeler andxthread cutter, Y i

pins about which the lay oscillates, it maybe Fig. 1 is an end elevation of a weft replenishing mechanism provided with my invention as viewed from the center of a loom, and

Fig. 2 is front elevation taken in the direction of arrow 2, Fig. 1.

Referring to the drawings, I have shown a loom frame designated generally at on which is mounted the inside plate 11 of a weft replenishing magazine M. The plate has mounted therein a stud 12 held in adjusted longitudinal and angular position with respect to the plate by set screw 13. Mounted on said stud is a transferrer arm 14 having depending legs 15 to which is pivoted as at- 16'a latch holder 17. The latter supports the latch 18 which is held in adjusted horizontal position with respect to the holder by means of screw 19. The latch is adapted for engagement with the hunter 20 on the lay L so that as the lay moves forwardly with the latch raised said bunter will engage the latch to cause counter-clockwise movement of the transfcrrer arm around stud 12 as viewed in Fig. 1. The downward movement of the left hand end of the transferrer arm effects transfer of the bobbin not shown.

The latch is normally down or below the position shown in Fig. 1, and is raised by means of a lifting rod 21 which extends around the bottom of the latch to support the latter. The upper end of the rod may be provided with a rod head 22 pivoted as at 23 to an arm 24 of a rock lever 25 pivoted to the .frame of the magazine as at 26. The opposite arm 27 of the lever 25. is slotted to receive a sliding block 28 pivoted to a stud 29 carried by arm 30. The latter is secured by set screw 31 to a rock shaft-32 located at the top of the magazine. A compression spring 33 located between the block 28 and the arm 27 yieldingly resists relative movement of the lever 25 and the arm 30, the block sliding in the slot .of the arm 27.

The top rock shaft oscillates in bearings 34 formed as fixed parts of the magazine frame and has secured thereto ashelf member 35 formed with hubs 36 at the ends thereof which are held to said shaft by set screws 37.

The rear end of the shaft 32 projects beyond the rear bearing 34 and has secured thereto an arm 38 having pivotally connected thereto secured for adjustable longitudinal motion with respect to the holder 43 by means of screw 46. The shuttle feeler ordinarily has a downwardly and forwardly curved surface 47 adapted for engagement with a portion of the lay to effect upward movement of the shuttle feeler and therefore rocking movement of the top shaft 32, the result of which is to cause such a movement of the arm 30 and lever 25 as will depress the latch 18.

The shuttle feeler has pivotally mounted thereon as at 48 a movable cutter blade 49 which is attached by means of a rod 50 to a fixed stud 51. The rising and falling movements of the shuttle feeler will cause relative movement of the cutter 49 with respect to the shuttle feeler because of the fact that the studs 44 and 51 are eccentric with respect to each other.

It is believed that the descriptive matter thus far given will provide an understanding of the operation of the magazine. Further reference may be had to prior patent to Ryon No. 1,030,748 which shows the magazine parts and to patent to Chevrette No. 1,662,235 which shows the particular form of combined shuttle feeler and thread cutter which is supported on stud 44.

As previously stated my present invention relates to means for moving the shuttle feeler without engagement with the lay so that the latter will not engage the cutter to damage the same, and in carrying my invention into effect I mount a collar on the rod 21 so that the same may be adjusted as to vertical postion by means of a set screw 61. A clip 62 is held to the transferrer arm by means of a screw 63, said clip extending as shown in Fig. 2 and being perforated as at 64 to receive the rod 21. A compression spring 65 is interposed between the bottom of the clip and the top of the collar, said spring 65 being sufficiently strong to overcome the spring 33.

Under normal conditions the transferrer arm will be in the raised position indicated in Fig. 1, being held in this position yieldinglyby a spring S the form and function of which is well understood. At the time of transfer the arm 14 will descend to the dotted line position shown in Fig. 1 and during the first part of this descent the clip 62 will exert a compressing force on the spring 65, and the latter in turn will tend to depress the rod 21. At some time prior to the arrival of the transferrer arm at its lowest position and be fore the lay has opportunity to engage the shuttle feeler, the spring 65 will be effective to move the collar 60 and therefore the rod 21 down to its normal position, thereby rocking the lever 25 and arm 30 from the full line to the dotted line position shown in Fig. 2. This movement of arm 30 causes a rocking of shaft 32 so that the arm 38 rocks in a counterclockwise direction with reference to Fig. 2 to lift the rod 39 and therefore the shuttle feeler. It will be noted that this operation is independent of anyfcam on thelatchl8' and does not depend upon'engagement of the lay with theshuttle feelen,

From the foregoing it will be seenthat I have provided a very simple means adaptable to multicolor weft replenishing mechanism at present in use and e'fiective tov reset themagazme Wltl'lOllll engagement between the lay and the shuttle feeler and without en gagement'between the lower'end of the rod 21 and any cam formed onthe'bottom of the latch 18, the resetting being efectedthrough a connection between the transferrerarm j and a iart of the mechanismwhich moves with the shuttle, feelen It will further be noted that I employ the same rod to effect the early resetting of the magazine which is used to set the latch 18 for engagement with the hunter 20 of thelay' and that the latch will be held raised n proper position to engage the hunter until after the latter engages the latch, this relation existing because of the fact that the rod 21 cannot move downwardly until a force derived from r the descending transferrer arm is transmitted through. the springto said rod. Thetransferrer arm may continue to move downwardly afterthe top shaft 32 is reset butthis will not strain or break any partof the magazine, the only ef- 'fect beingjto nauseafurther compression of ,thespring 65.

Havingthusdescribed my invention it will be seen that' changes and modifications may be made therein-by those skilled in. therart without departing from the spirit and scope of the invention and I doinot wish'to, be limited to the details herein disclosed, but what I claim is z 1. In a weft replenishing loom havlng a lay, a comb ned shuttle feeler and thread cutter, a transferrer arm, a latch operatively,

connected, to the arm and capable of engagement with the lay, operatlng connections between theshuttle feeler and the latch to act on transferring beats of the loom to move i. the latter into operative relation with respect to the lay'and also to-move the shuttle feeler into shuttle detecting position in the'path of the lay, and means movable with the transferrer arm independent of the latch to en gage said connections and move the latter to move the combined shuttle feeler and cutter out of the path of the lay during the forward movement of the lay to prevent engagement of the lay and combined feeler andcutter.

2. in a weft replenishing loom having a lay, a combined shuttle feeler and thread cutter, a transferrer arm, operative connec-i tions for the shuttle feeler to move the latter into shuttle detecting position in the pathof the lay on a transferring beat of the loom, an

element operatively connected to the transferrer and movable on a transferring beat of the loom into operative relation with respect to the lay, and a member independent of the beat of the loom effective to move ter, a transfer mechanism the lav, devices effective on eat or the loom to move the shuttle fe'eler andcutter into shuttle detecting position in element mounted on't-he transferrer arm and movable therewith to be operatively related to the connections during the forward stroke of the lay" on a transferringbeat of the loom to move said connections to cause tie com-i hined shuttle feeler and thread cutter to ,move out of lay engaging position before the lay completes its forward movement.

In aweft replenisinng loonihavinga e-M new d movable with the latter on a transferring at of the. loom to actuate the member to ause the latter to move the combined shuttle reeler and thread cutter out of the path of the lay on a transferring beat of the loom before vthe lay arrives at a pomt in its forward movement where it would otherwise engage the shuttle feeler and cutter.

lnav weft replenishing loom having a lay, a recln -member, a combined shut le feeler and tn ad cutter operatively connected to the membor,a'transferrer arm, a latch n r-or the arm operatively connected to the rocking member, said member on a transferring the shuttle feeler and cutterinto shuttle detecting position in the path of the lay and also effective to-move theilatch into operative relati-onnith respect to the and a yielding-connection betweenthe transferrer arm and the member ef rectivefduring the forward.movement of the lay on a transferring beat of the loom to move,

said member to cause the shuttle feelerio move out of the :pa'thof the lay during the forward movementof the lay to prevent en- 7 gagement the lay and combiner feeler vand cutter. a

5. In aweft replenishing loom havinga lay, acombined shuttlefeeler and thread cutrelated to the lay on a transferringvheat of.

the loom during theforward movement of transferring the path of the lay, and means to move the combined shuttle feeler and thread cutter out of the'p'ath of the lay during the forward movement of the lay to prevent engagement of the lay and combined feeler and cutter.

:6. In a weft replenishing loom havinga lay, a combined shuttle feeler and thread cutter,:a ,transferrer arm,-a latch ol'ieratively' connected to the transferrer armfand capable of engagement with thelay to cause actuation to be operativelv of the arm, a control member operatively connected to the shuttle feeler and cutter, an element operatively interposed between the latch and the control member, said control member etiective to move the combined shuttle feeler and thread cutter into the path of the lay to detect for shuttle presence and effective to move the latch by means of said element into operative relation with respect to the lay, and connections between the transferrer arm and said element independent of the latch and efl'ective during the transferring strolre of the arm to cause movement of the control member, there y causing the latter to move the combinedslmttle feeler and thread cutter out of the path of the lay.

7. In a weft replenishing loom having a lay, a combined shuttle feeler and thread cutter, a transferrer arm, a latch operatively connected to the transferrer arm and capable of engagement with the lay to cause actuation of the arm, a control member operatively connected to the shuttle feeler and cutter, an element operatively interposed between the latch and the control member, said control member effective to move the combined shuttle feeler and thread cutter into the path of the lay to detect for shuttle presence and eilective to move the latch by means of said element into operative relation with respect to the lay, a yielding connection interposed between the transferrer arm and the element and effective during the first part of the transferring stroke of the transferrer arm to cause movement of the element by a force derived from the transferrer arm to move the control member, thereby causing the latter to move the combined shuttle feeler and thread cutter out of the path of the lay during the forward movement of the lay to prevent engagement of the lay and combined teeler and cutter. v

8. In a weft replenishing loom having a lay, a combined shuttle feeler and thread cutter, a transferrer arm, a latch operatively connected to the transferrer arm and capable of engagement with the lay to cause 210- I tuation of the arm, a control member operatively connected to the shuttle feeler and cutter, an element operatively interposed between the latch and the control member, said control member effective to move the combined shuttle feeler and thread cutter into the path of the lay to detect for shuttle presence and eii'ective to move the latch by means of said element into operative relation with respect to the lay, a clip carried by the transferrer arm, a spring associated with the element to be engaged by the clip during downward movement of the transferrer arm to cause movement of the element by a force derived from the transferrer arm, said control memher when the element moves under influence of the transferrer arm effective to move the cutter, a rocking member connected to the shuttle feeler and cutter and effective when rocked in one direction to move the feeler and cutter into the path of the lay and when moved in another direction to move the fecler and cutter out of the path of the lay, an element connected to and moving with the rocking member, a transferrer arm controlled by the element, and means actuated by the transferrer arm during the forward movement of the lay to move the shuttle feeler and cutter out of the path during theforward movement of the lay to prevent engagement of the lay and combined teeler and cutter.

10. In a weft replenishing loom having a lay, a combined shuttle feeler and thread cutter, a transfer-rel arm, operating connections effective on a transferring beat of the loom to move the combined feeler and cutter intothe path of the advancing lay to detect for a misplaced shuttle and also to render the 'trans'lerrer arm operative by the advancing lay to have a transferring movement, and

means actuated by the transferrer arm during the forward movement of the lay to move the operating connections to move the combined feeler and cutter out of the path of the lay during the forward movement of the lay to prevent engagement of the lay and combined feeler and cutter.

In'testimony whereof I have hereunto atfixed my signature.

PHILIP D. DOHERT Y. 

